Electric switch



A. MLJWEWO ELECTRIC SWITCH Filed 00%,. 1'7, 1923 INVENTOR flRv/n H. NERO BY W ATTORNEYS ipmimiiitd 'mttt pp t nnwrn n. none; or now =1 1 u tutti i in th i nnncrnro WWHWWH.

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' hetweon the instituting inernhers oi the supvtit hit

porting structure; I

it) tnrious detsits ot construction ond retotion of ports hereinoiiter descrihed or shown in tho occornponyingdrowings in which- Fig. i is :t hrohen side eierotion ot on eiectric torn sochet in which my invention is einhodie in one term;

' 2 is u. rerticod section through the insututing hody, the switch heing shown in open circuit position;

his". t is. o siiniior section showing the switch in ctosed circuit position;

Fist. tis on enpioded View ot the switch ond hod r structure; ond

his, 5 is u simitsr riew oi o inodihed construction the present invention rnoy he oppiied to switches oit curious types, end its ernhodinnent in on eiectric inrnp socket in the wccornponyinp: drowino s is rnereiy. to iitustrote on oppropristo utiility, I shown in Figs, 1 to t, the soctret corn" prises on instituting hutton tit oi porcoioin or the titre, provided with o, tro-nsrerso' centrot chonnei it in one twee to occonnnodote tho switch n'iochonisrn. it second insuiotinp nueinher in the term oi o hiher disc it. overties the chonneitod toce o't tho hutton tit. Upon roots the usnoi screw sheii it, over tho ususi hottorn tisnpie it cit which ointends tho 'yoirc tti inteprot with the otiset terininoi strep it which protects throuoh o totoroi sport-ore in tho shott end ties in the recess it torined in one side oi the hutton it" it. plsir hoits it pnssinp; throuoh hotes it in tho hutton 'tth disc tionoe it sud totrino the retro tit, sense to innino toin the .shott position end to hoid 'ott o't sochet ports r i o center 99d oi? tho socitet is rnounted diroctip' on tho tt 'i it insuioted hp theiottor trorn tho screw shetil 18. The cont-net Q0 is heid in position hr integrot tionges Qt end 2%, tho tornoer possing through or. hoie Q3 in the disc, and tho totter psssing' through o siot Qtin tho disc; tho ends oi tho two flonges heing" o'hsct toward each other heneoth the disc, thus riveting the contact in piece, t ionges 2t: extending downword trorn opposite sides oi the contoct hood, oreriiothe hody oi the disc it end serve us spacing struts which prevent the detorrnotion ot the center contoct when u. ioinp hose is screwed down hord into the shoii id "the circuit through the sociret is mode or hroiren hy the osciiictino rocirer Qt. which in the ctosed circuit position (Fig-Qt) enters the siot M in the disc 11% and engages the house 22 ot' the center cents/ct. The rocher Qt is pivoted upon the ironic 9?, item one rnorgin oi which projects on integrot tug 52h corrpinpg o hinding screw 29 thot hes in the side groove thin the hutton 10. the rocker 26 is thus constontiy in etectrico't connection with the wire termino-i 29. Siidohty engorged heneoth the ironic is o reciprocating her 3t hon/inn ot its opposite ends push huttons 3% end 33 to tociiitote its rnonipuintion. The push hear is provided with on oiiset push tug 3.4; which projects upwordi r througrh o siot in tho itrorne, ond heors o-goinst the edge ot the rocher 26 opposite thot which enogoores the center contoct dongs Q2. The push oiso curries o piste spring 3t whichn st its tree end heors ooninst the downwordty proj ectingr cont nose st or? the rociror to.

"the porticuior shops ond orronsenoent these ports rnop' he roriousi r modified, white stiii ernhod ringr the underi oingr churnctoristics o't int inrention hut the construction which i hero iiiustrotod is sirnpte, ethcient end eeononiicoi. "ifhuis the switch trorno Qt is struch hrorn sheet niotoi o copied to shops ithe ionn itudinot siot u tor the so coininodotion oi the homily oi the ond push her cunt his onton dint-once trout the or rochor pir'otorh tltt'ttt/ttl'tt The sport-tire tit on the opp the hrid re occornrnod tho rochor, the ho open heorin tit intorniodi coin ends oi. the rocher whio ti o't r whore d hetow t rows the o u. 4

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iiitt frame are received in channels 43 and 44 in permit the lug 34 to be passed upward through the frame to assembled position. The interposition of the rocker 26 between the bridge 38 and the push lug 34 limits the approach of the lug 34 toward the slot 47,

and is of such dimensions as to prevent the escape of the lug through the, slot 47 while the rocker is in position.

The operation of theswitch will be readily V understood. In the ofi position of the switch '(Fig. 2), the rocker 26 is held away from the contact lug 22 and against the push lug 34 by the pressure of the terminal incline a of the spring 36 which bears against the incline a: to one side of the nose of the rocker,

cam 37 As the pushbar-is shifted to the left by pressure on the button 32, the rocker 26 is lifted toward the contact'22 by its sliding engagement with'the push lug 34. Simultaneously, the downward swing of the cam 37 of the rocker places the spring 36 under greater stress, and shifts the cam nose across the crest 48 of the spring 36, the spring and rocker cam movin in opposite directions as the bar 31 is shifted. When the cam nose passes the spring crest 48, the opposite incline b of the spring tends to ride up the opposite incline g of the rocker cam 37 The dimensions and relation of the parts is such that the rocker 26 is now biased with a sprin action against the contact 22 (Fig. 3?-

sna and is held in this position not only directly by the spring 36, but also by the thrust of the push lug 34. It will be noted that the movement of the push bar in this direction is stopped by the engagement of the push lug with the rocker, plvotedon the fixed frame,

ter contact lug 22 with increasing effort by h the spring 31, as'the incline 6 thereof rides down the incline y of the cam 37, and the spring is placed under greater stress. As h the crest 48 ot'the spring passes the nose of the cam 37, the incline a of the spring en gages the incline m of the cam nose and biases the rocker in the opposite direction. Inasmuch as the push lug 34 of the bar 31 has moved out of engagement with the rocker 26, and the latter is therefore unopposed, the turning moment exerted by the spring 36 upon the cam nose 37 throws the rocker away from the contact lug 22 with a snap action. Its throw to open circuit is halted by impingement against the push lug 34. A rapid and wide break between rocker and switch contact 22 is thus'attained, while the spring36 holds the rocker in open circuit position.

In the'modification shown in Fig. 5, the operating parts of the switch mechanism are the same as those just described. The shape of the frame and the construction of the insulating body'elements is altered. Thus the body comprises a pair of buttons 49 and 50 recessed on their meeting faces to afford channels 51 inwhich the lugs 52, 53 and 54 are accommodated, and by which the flat of the parts. The button 49, as well as the button 50, is transversely channeled at 55 to accommodate the switch mechanism. It is also slotted at 56 to permit the rocker 57 to play therein and to engage the contact lug 58 which rests against one end of the slot 56. The other end of the contact is integral with or electrically connected to the center contact 59. In the present construction the center contact is mounted on button 49 by a through rivet 60.

Various other modifications will readily occur to those skilled in the art which do not depart from what I claim as my invention.

I claim 1 1. In an electric switch, a switch contact, a pivoted rocker, a push bar slidable with-respect thereto and adapted to push the rocker toward the switchcontact, and a spring carried by the push bar and having a camming engagement with the rocker to complete the circuit closing travel of the latter.

2. In an electric switch, a switch contact, a pivoted rocker, a push bar slidable with respect thereto, and a spring carried by the latter and having a camming engagement with the rocker to throw the same away from .the contact with a snap action on movement of the push bar in the same direction.

3. In an electric switch, a pivoted rocker, a push bar slidable with respect thereto and having apositive engagement with the rocker to swing the latter on its axis on movement of the bar in one direction, together with a spring moved by the push bar and operativelv-engaging the rocker to swing the latter in t e opposite direction on the return movement of the push bar.

4. In an electric switch, a pivoted rocker aving a contact rtion extending to one side of its axis, an a cam portion extending to the o posite side of its axis, a pushbar rectilinear y displaceable with respect to the Fttl) tlti neonate rocher, and mechanically engaging the latter to swing it in the direction of movement ot the push har and a sprin moving with the push har and engaging he cam end ot the rocker to maintain the latter in its extreme positions at opposite ends ot its throw,

5. 'ln an electric switch, a pivoted roclrer having a contact portion extending to one side of its axis, and a cam portion extending to the opposite side ct its axis, a push har rectilinearly displaceahle with respect to the roclrer, and mechanically engaging the latter to swing it in the direction of movement ot the push har, a spring carried hy the push her and moving therewith, said spring hav ing an operative engagement with the cam end oi the roclrer and serving to shitt the roclrer with snap action to its extreme positions at opposite ends ot its throw 6.. in an electric switch, a pivoted roclrer, a push har rectilinearly movahle with respect thereto, a spring carried hy the push har and engaging the roclrer, said push har engaging the roclrerto positively swing the latter on its axis on the displacement ot the push har in one direction, said spring having an actuating engagement with the roclrer to swing thelatter' in the opposite direction on the return movement ot the push har.

i1. lln an electric switch, a pivoted roclrer, a push har rectilinearly displaceahle with res ect thereto, a lag on the push har engaging tlie roclrer to swing the latter on its axis on displacement ot the push har in one direction, a spring moving with-the push har and operatively engaging the roclrer to complete the movement initiated hy the push har lug, said spring serving on the return movement at the push har to swing the roclrer in opposite direction with a snap action after said lug has left the roclrer.

8. ln an electric switch, a slotted trame having a transverse hridge, a roclrer pivoted on said hridge and working in the slot on the frame, a push har slidahly associated with the frame and having means for positively displacing the roclcer on the movement ot the push har in one direction, together with a spring carried by the push har and having a ramming engagement with the roclrer to swing the latter in opposite direction on the return movement of the push har.

9. in an electric switch, an apertured frame, a rocker pivoted thereon and having a contact portion extending shove the t'rame and a cam portion extending helow the trams, a slotted push har rectilinearly, guided on said frame heneath the latter, an element on said push har projecting through the slot in the trame and engaging the contact portion ot the roclrer to swing the latter on its axis on the movement of the push har in one direction, together with a spring carried hy said. push har and engaging the cam end ot the rocker to displace the roclrer with a snap action in opposite direction on the return movement ot the push har,

lit. in an electric switch, a sheet metal trame slotted to term an integral hridge transverse to said slot, a roclrer having an open hearing pivoted on said hridge, and a rectilinearly movahle spring engaging said roclrer to constantly maintain the latter in pivotal engagement with the trame.

ll, lin an electric switch, a trams, a roclrer pivoted thereon and having a contact portion extending in one direction trom its axis, and a cam portion extending in the opposite direction trom its axis, together with a rectilinear ly movahle spring engaging the cam portion ot the roclrer and imparting snap action thereto in opposite directions on the longi tudinal displacement ot the sprin re. lln an electric switch, a rectilinearly movable sheet metal push har having a tug projecting from one tace thereof, together with a that metal spring secured to the lower tace ot the har and extending in the direction ot' its length, said lug and spring heing adapted tor operative engagement with an associated roclrer.

l3. lln an electric switch, a rectilinearly movahle push har longitudinally slotted and having a lug projecting ahove the har at one end ot' the slot, together with a hat metal spring secured to and movahle with the push har and extending in the direction ot the length oil the latter heneath the slot therein tor cooperation with an associated roclrer playing in the slot.

let. in an electric lamp soclret, an insulating disc, a screw shell resting on the disc, and a center contact carried by the disc, said center contact having tlanges passing through apertures in the disc and odset heneath the latter to rivet the contact memher thereto, the aperture adjacent one 0t said flanges heing shaped as a slot permitting the play of a rocker into and out 0t engagement with said tlange to make and hrealt connection with said center contact.

lln testimony whereot l have signed my name to this specification.

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